Noise Levels in Tunnel Springs, AL | Find Quiet Neighborhoods With Our Sound Map
42 dBA
Average noise across Tunnel Springs
Quiet suburban street at night
3
Residents above the EPA 55 dBA threshold
2% of Tunnel Springs residents
60 dBA
Loudest residential point
Normal conversation an arm’s length away
This map shows modeled outdoor noise across Tunnel Springs at 100-meter resolution, combining road, aviation, and rail sources. Green areas measure below 45 dBA. Orange and red exceed the EPA's 55 dBA outdoor threshold linked to long-term health effects. Use the layer toggles to view each source on its own or all together.
Overall
Road
Rail
Aviation
Click the map to explore
35 dBa55 dBa (EPA limit)90+ dBa
3545557090
Quietest (dBA)Loudest
Colorblind friendlyoff
What the numbers sound like
30 dBAWhisper
40 dBASoft rainfall
45 dBAQuiet suburban street at night
50 dBAQuiet office
55 dBAEPA outdoor threshold: light traffic 100 ft away
60 dBANormal conversation an arm's length away
65 dBABusy restaurant
70 dBAHighway traffic 50 ft away
80 dBACity bus interior
Population Above the EPA Outdoor Threshold
The EPA's 55 dBA outdoor reference level is a common benchmark for residential noise exposure, especially for activity interference, annoyance, and long-term community noise concerns. About 3 Tunnel Springs residents, or 1.5%, live above that level. By land area, 1.2% of Tunnel Springs is above 55 dBA.
Average noise levels for Tunnel Springs residents, grouped by direction from the center of Tunnel Springs. Southern Tunnel Springs carries the highest population-weighted average; Eastern Tunnel Springs carries the lowest. Just 0% of residents in Eastern Tunnel Springs live in blocks above the EPA's 55 dBA threshold, a fifth of the share in Southern Tunnel Springs.
Eastern Tunnel Springs
36.6 dBA · Quiet
Soft rainfall
0% of people above 55 dBA
QuietLoud
Southern Tunnel Springs
45.0 dBA · Mostly quiet
Quiet suburban street at night
3% of people above 55 dBA
QuietLoud
Western Tunnel Springs
43.2 dBA · Quiet
Quiet suburban street at night
1% of people above 55 dBA
QuietLoud
Southern Tunnel Springs sounds about 79% louder than Eastern Tunnel Springs to the human ear, a 8.4 dBA gap. Every 10 dBA roughly doubles perceived loudness. Within any of these directions, two homes a quarter mile apart can still differ by 10 or more dBA depending on how close they sit to a major highway.
How far back from Millender Rd do you need to be?
Millender Rd produces an estimated 55 dBA at its loudest centerline points. Noise drops logarithmically with distance, with the exact rate depending on what's between you and the road. Tree cover, walls, terrain, and pavement type all matter. At roughly a quarter mile back, traffic fades into the noise level of a soft rainfall.
At source
55 dBA
Quiet office to normal conversation
165 ft
41 dBA
Soft rainfall
330 ft
35 dBA
Soft rainfall
660 ft
35 dBA
Soft rainfall
¼ mile
35 dBA
Soft rainfall
½ mile
35 dBA
Soft rainfall
Calculated from the model's calibrated attenuation formula. About 65% of Tunnel Springs sits under tree canopy (much heavier than most cities) and roughly 0% is impervious surface like pavement and rooftops. Both are folded into the per-place decay rate above. Heavier canopy pulls noise down faster with distance; impervious surfaces slow the drop.
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Rail Noise
Active freight rail runs through parts of Tunnel Springs. For most blocks the rail-only contribution is small. Combined road-plus-rail noise rarely exceeds road noise on its own. The exceptions are the handful of blocks within roughly a quarter mile of the right-of-way during pass-through hours.
Use the Rail toggle on the map above to isolate rail's contribution from road and aviation.
How Noise Is Distributed Across Tunnel Springs
The bar chart below shows the share of Tunnel Springs residents in each noise band. About 100% of residents live below the EPA's 55 dBA threshold, and roughly 0% live in blocks above 60 dBA. Long-term exposure in that range is linked to elevated stress hormones and cardiovascular risk.
How Tunnel Springs Compares
Tunnel Springs sits the highest among the peer group. Below: how Tunnel Springs's average outdoor noise and share of residents above the EPA threshold compare with Pine Orchard, Skinnerton, China, and Perdue Hill.
Average noise level (dBA)
Tunnel Springs's 42.4 dBA pop-weighted average is the highest among the peer group. Alabama as a whole averages 49.0 dBA and the U.S. averages 52.0 dBA. Both are lower than Tunnel Springs because most of either area is rural land away from major roads.
Share of residents above 55 dBA
About 1.5% of Tunnel Springs residents live in blocks where outdoor levels exceed the EPA's 55 dBA threshold. That's in the middle of its peer group. Measured by land area instead, 1.2% of Tunnel Springs's footprint sits above 55 dBA, against a Alabama average of 20.0% and a national average of 28.1%.
What This Means if You're Moving to Tunnel Springs
Distance from highways matters more than the neighborhood name. Two homes in the same zip code can differ by 20 dBA if one sits 100 meters from Millender Rd and the other 500 meters away. The model captures this at 100-meter resolution, so noise exposure changes block by block.
Tree canopy can help reduce modeled noise exposure. Roughly 65% of Tunnel Springs is under tree cover (much heavier than most cities), and the dominant land cover is evergreen forest. Both are measured from federal USDA Forest Service and USGS satellite imagery at 30-meter resolution. Streets with 60% or higher canopy show 3 to 5 dBA lower noise than comparable streets with bare ground or pavement, which is why the per-place decay rate above already accounts for it.
Sources & Methodology
The BestNeighborhood noise model is calibrated against nearly one million federal ground-truth measurements across four states. Road noise is computed from segment-level federal traffic data and propagated outward using physics-based acoustic decay, with attenuation rates that depend on the surrounding land cover.
All inputs are published federal datasets. Block-level noise is computed by combining road, rail, and aviation sound sources in the energy domain, the same physics used in professional environmental noise assessments. Read the full methodology.
